Should the discharge supply to a sprinkler system be shut down without instruction from the Incident Commander?

• A. Never
• B. Always
• C. Only if authorized
• D. Usually

Answer: (A)

In incident operations, keeping the sprinkler system ready to suppress the fire is a top priority, and actions affecting that capability must come from the command structure. Shutting down the discharge supply without instruction can cripple firefighting efforts, delay fire control, and put occupants and responders at greater risk. The Incident Commander sets priorities and coordinates resources; any change to essential systems like the water supply should only occur if they are explicitly directed and communicated through the established command process. If a shutdown ever becomes necessary, it will be due to a deliberate, authorized decision with proper synchronization across the incident team.